Thats not good at all because there isnt any oversight. 
Or the oversight is minimal. 

Their 'fund' is the BoJ which holds their sovereign debt. It's a total mess

GhostofTruth

The Japanese are becoming an older generation, so their costs are going to increase for a lot of things.

I wonder if they have some kind of sovereign fund?

econ

Japan’s Economic Struggles Deepen as Inflation Falls and Recession Looms

The Japanese are becoming an older generation, so their costs are going to increase for a lot of things. 
I wonder if they have some kind of sovereign fund?
